*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:#EAF2FB;color:#24364F;font-family:Arial,"PingFang SC","Microsoft YaHei",sans-serif;line-height:1.82;overflow-x:hidden}img,svg{max-width:100%}a{color:#137CD8;text-decoration:none}a:hover{text-decoration:underline}button,a{touch-action:manipulation}.site-header{position:sticky;top:0;z-index:9000;width:100%;background:rgba(255,255,255,.94);backdrop-filter:blur(10px);box-shadow:0 6px 18px rgba(19,124,216,.08)}.header-inner{max-width:1140px;min-height:66px;margin:0 auto;padding:0 16px;display:flex;align-items:center;justify-content:space-between;gap:12px}.site-logo{display:flex;align-items:center;flex:0 0 auto}.site-logo img{display:block;height:38px;width:auto;max-width:156px;object-fit:contain}.logo-placeholder{display:inline-flex;min-width:118px;height:38px;align-items:center;justify-content:center;border-radius:10px;background:#EDF5FF;color:#137CD8;font-weight:800}.nav-core{display:flex;align-items:center;justify-content:center;gap:2px;min-width:0}.nav-core a{color:#24364F;padding:8px 11px;font-weight:700;text-decoration:none;white-space:nowrap}.nav-core a.is-current,.nav-core a:hover{color:#137CD8;box-shadow:inset 0 -2px 0 #2FA8F7}.main-btn{display:inline-flex;align-items:center;justify-content:center;height:40px;min-width:92px;padding:0 18px;background:linear-gradient(135deg,#45C7FF 0%,#2FA8F7 48%,#137CD8 100%);color:#FFFFFF;border-radius:999px;text-decoration:none;font-weight:700;box-shadow:0 10px 22px rgba(19,124,216,.18);touch-action:manipulation}.main-btn:hover{color:#fff;text-decoration:none;filter:brightness(.98)}.menu-toggle{display:none;min-height:40px;border:0;background:transparent;color:#137CD8;font-weight:800;font-size:15px}.channel-bar{background:#F4F8FF;border-bottom:1px solid rgba(47,168,247,.14)}.channel-inner{max-width:1140px;margin:0 auto;padding:0 16px;display:flex;gap:4px;overflow-x:auto;scrollbar-width:thin}.channel-inner a{flex:0 0 auto;padding:9px 10px;color:#5D718A;font-size:14px}.channel-inner a:hover{color:#137CD8}.mobile-drawer,.drawer-mask{display:none}main{display:block;min-height:60vh}.container{width:min(1140px,calc(100% - 32px));margin:0 auto}.page-hero{padding:34px 0 18px}.breadcrumb{font-size:14px;color:#5D718A;margin-bottom:10px}.breadcrumb a{color:#5D718A}.page-hero h1{margin:0;color:#137CD8;font-size:clamp(28px,4vw,40px);line-height:1.25}.lead{max-width:820px;font-size:17px;color:#425870;margin:14px 0 0}.section{padding:24px 0}.section h2{color:#137CD8;font-size:26px;line-height:1.35;margin:0 0 14px}.section h3{color:#24364F;margin:0 0 8px}.article-card,.info-strip,.content-card,.step-card,.note-box{background:#fff;border:1px solid rgba(47,168,247,.14);border-radius:16px;box-shadow:0 12px 26px rgba(19,124,216,.08)}.article-card{max-width:820px;padding:26px;margin:0 auto}.article-card p:first-child{margin-top:0}.article-card p:last-child{margin-bottom:0}.info-strip{padding:20px 24px;background:#F4F8FF}.content-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.content-card{padding:20px}.content-card h2,.content-card h3{font-size:20px;margin:0 0 8px}.content-card p{margin:0;color:#5D718A}.six-index{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.six-index a{background:#fff;border:1px solid rgba(47,168,247,.14);border-radius:15px;padding:18px;box-shadow:0 12px 26px rgba(19,124,216,.07);color:#24364F;text-decoration:none}.six-index strong{display:block;color:#137CD8;font-size:18px;margin-bottom:4px}.six-index span{display:block;color:#5D718A;font-size:14px}.split{display:grid;grid-template-columns:1.05fr 1fr;gap:24px;align-items:center}.split .copy{background:#fff;border-radius:16px;padding:24px;border:1px solid rgba(47,168,247,.14)}.split .copy h2{margin-top:0}.media{position:relative;width:100%;max-width:100%;overflow:hidden;border-radius:14px;background:#EDF5FF;aspect-ratio:16/9}.media>img{position:absolute;inset:0;width:100%;height:100%;object-fit:contain;object-position:center center;display:block}.media-placeholder{display:flex;align-items:center;justify-content:center;color:#5D718A;font-weight:700}.media-placeholder span{padding:8px 12px}.app-strip{display:grid;grid-template-columns:180px 1fr;gap:20px;align-items:center;background:#fff;border-radius:16px;padding:18px;border:1px solid rgba(47,168,247,.14)}.app-strip .media{height:110px;aspect-ratio:auto}.hero-carousel{position:relative;z-index:1;margin:26px auto 22px;width:min(1140px,calc(100% - 32px));height:280px;border-radius:16px;background:#fff;overflow:hidden;border:1px solid rgba(47,168,247,.14);box-shadow:0 12px 26px rgba(19,124,216,.08)}.carousel-track,.slide{height:100%}.slide{position:absolute;inset:0;opacity:0;pointer-events:none;transition:opacity .35s ease;display:flex;align-items:center;justify-content:center;background:#fff}.slide.is-active{opacity:1;pointer-events:auto}.slide img{width:100%;height:100%;object-fit:contain;display:block}.slide .slide-placeholder{width:100%;height:100%;display:flex;align-items:center;justify-content:center;background:#EDF5FF;color:#5D718A;font-weight:700}.carousel-prev,.carousel-next{position:absolute;z-index:2;top:50%;transform:translateY(-50%);width:42px;height:42px;border:0;border-radius:50%;background:rgba(255,255,255,.94);color:#137CD8;font-size:24px;box-shadow:0 6px 16px rgba(16,43,70,.12);cursor:pointer}.carousel-prev{left:12px}.carousel-next{right:12px}.carousel-dots{position:absolute;z-index:2;left:50%;bottom:12px;transform:translateX(-50%);display:flex;gap:7px}.carousel-dot{width:10px;height:10px;min-height:10px;padding:0;border:0;border-radius:50%;background:rgba(19,124,216,.28);cursor:pointer}.carousel-dot.is-active{background:#137CD8}.related-links{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px}.related-links a{display:inline-flex;min-height:40px;align-items:center;padding:8px 13px;background:#F4F8FF;border:1px solid rgba(47,168,247,.14);border-radius:999px}.step-list{display:grid;gap:14px;counter-reset:steps}.step-card{padding:18px 20px;counter-increment:steps}.step-card h2:before,.step-card h3:before{content:counter(steps) ". ";color:#2FA8F7}.two-col{display:grid;grid-template-columns:1fr 1fr;gap:18px}.note-box{padding:22px}.note-box strong{color:#137CD8}.plain-list{padding-left:20px}.plain-list li{margin:7px 0}.faq-list{display:grid;gap:14px}.faq-item{background:#fff;border-radius:16px;padding:20px;border:1px solid rgba(47,168,247,.14)}.faq-item h2{font-size:20px;margin:0 0 8px}.side-float{position:fixed;right:14px;top:34%;z-index:8000;display:flex;flex-direction:column;gap:8px;width:112px}.side-float>a,.side-float>button{min-height:40px;border:1px solid rgba(47,168,247,.2);border-radius:12px;background:#fff;color:#137CD8;font-weight:700;text-align:center;padding:9px 8px;box-shadow:0 8px 18px rgba(19,124,216,.09)}.side-float .main-btn{color:#fff;border:0}.side-float button{cursor:pointer}.site-footer{margin-top:46px;background:#102B46;color:#EAF6FF}.footer-grid{max-width:1140px;margin:0 auto;padding:38px 16px 24px;display:grid;grid-template-columns:1.35fr repeat(3,1fr);gap:24px}.site-footer h2{font-size:17px;color:#fff;margin:0 0 10px}.site-footer a{display:block;color:#EAF6FF;margin:5px 0}.footer-brand img{height:40px;width:auto;max-width:160px;object-fit:contain;background:#fff;border-radius:10px;padding:3px}.footer-logo-text{font-size:20px;font-weight:800}.footer-brand p{color:#CFE4F6}.footer-bottom{border-top:1px solid rgba(234,246,255,.16);max-width:1140px;margin:0 auto;padding:16px;font-size:13px;color:#CFE4F6}.mobile-bottom{display:none}body.drawer-open{overflow:hidden}
@media(max-width:1180px){.side-float{display:none}}
@media(max-width:980px){.header-inner{min-height:62px;display:grid;grid-template-columns:72px 1fr 96px;gap:8px}.menu-toggle{display:inline-flex;align-items:center;justify-content:flex-start;padding:0}.site-logo{justify-content:center}.site-logo img{height:34px;max-width:132px}.header-btn{justify-self:end;min-width:88px;padding:0 14px}.nav-core,.channel-bar{display:none}.mobile-drawer{display:block;position:fixed;inset:0 auto 0 0;width:min(84vw,320px);background:#fff;z-index:12000;transform:translateX(-105%);transition:transform .2s ease;box-shadow:18px 0 40px rgba(16,43,70,.16)}.mobile-drawer.is-open{transform:translateX(0)}.drawer-mask{display:none;position:fixed;inset:0;background:rgba(16,43,70,.38);z-index:11000;opacity:0;pointer-events:none;transition:opacity .18s ease}.drawer-mask.is-visible{display:block;opacity:1;pointer-events:auto}.drawer-top{height:64px;padding:10px 14px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid rgba(47,168,247,.14)}.drawer-logo img{height:34px;width:auto;max-width:135px;object-fit:contain}.drawer-close{min-height:40px;border:0;background:#F4F8FF;color:#137CD8;border-radius:10px;padding:0 12px;font-weight:700}.drawer-scroll{height:calc(100vh - 64px);overflow-y:auto;padding:12px 16px 30px}.drawer-scroll section{padding:8px 0 12px;border-bottom:1px solid rgba(47,168,247,.12)}.drawer-scroll h2{font-size:14px;color:#5D718A;margin:0 0 7px}.drawer-scroll a{display:block;padding:8px 4px;color:#24364F;font-weight:650}.content-grid{grid-template-columns:repeat(2,1fr)}.split{grid-template-columns:1fr}.app-strip{grid-template-columns:140px 1fr}.hero-carousel{height:230px}.two-col{grid-template-columns:1fr}.mobile-bottom{position:fixed;z-index:8500;left:0;right:0;bottom:0;display:grid;grid-template-columns:repeat(4,1fr);background:#fff;border-top:1px solid rgba(47,168,247,.2);padding-bottom:env(safe-area-inset-bottom)}.mobile-bottom a{min-height:52px;display:flex;align-items:center;justify-content:center;color:#24364F;font-weight:700}body{padding-bottom:52px}.site-footer{margin-bottom:0}.footer-grid{grid-template-columns:1fr 1fr}}
@media(max-width:640px){.container{width:min(100% - 24px,1140px)}.header-inner{padding:0 12px;grid-template-columns:64px 1fr 92px}.menu-toggle{font-size:14px}.header-btn{font-size:14px;min-width:84px;padding:0 12px}.page-hero{padding:26px 0 12px}.page-hero h1{font-size:28px}.lead{font-size:16px}.section{padding:18px 0}.section h2{font-size:22px}.content-grid{grid-template-columns:1fr}.six-index{grid-template-columns:repeat(2,1fr);gap:10px}.six-index a{padding:14px}.hero-carousel{height:164px;width:calc(100% - 24px);margin-top:16px}.carousel-prev,.carousel-next{width:38px;height:38px}.app-strip{grid-template-columns:1fr}.app-strip .media{height:auto;aspect-ratio:16/9}.article-card{padding:20px}.footer-grid{grid-template-columns:1fr;gap:18px;padding-top:28px}.footer-bottom{padding-bottom:18px}.media{border-radius:12px}}
